Can a vendor in a real estate transaction repudiate the contract by failing to convey title in fee simple?

This Court’s decision in Mason v. Freedman, 1958 CanLII 7 (SCC), [1958] S.C.R. 483, falls in the third type of situation in which a duty of good faith arises (where a contractual power is used to evade a contractual duty). In that case, the vendor in a real estate transaction regretted the bargain he had made. He then sought to repudiate the contract by failing to convey title in fee simple because he claimed his wife would not provide a bar of dower. The issue was whether he could take advantage of a clause permitting him to repudiate the transaction in the event that he was “unable or unwilling” to remove this defect in title even though he had made no efforts to do so by trying to obtain the bar of dower. Judson J. held that the clause did not “enable a person to repudiate a contract for a cause which he himself has brought about” or permit “a capricious or arbitrary repudiation”: p. 486. On the contrary, “[a] vendor who seeks to take advantage of the clause must exercise his right reasonably and in good faith and not in a capricious or arbitrary manner”: p. 487.